Leading neurosurgeon in Kerala specializing in advanced brain surgery, spine surgery, and endoscopic epilepsy surgery at Caritas Neuro Sciences, Caritas Hospital, Kottayam.
Book Consultation at Caritas Hospital →Dr. Biji Bahuleyan is an internationally acclaimed neurosurgeon and a pioneering figure in minimally invasive endoscopic epilepsy surgery. Currently serving as Senior Consultant – Neurosurgery at Caritas Neuro Sciences, Caritas Hospital, Kottayam, Kerala, he brings over 25 years of clinical and research experience to the care of patients with complex brain and spine disorders.
After completing his M.Ch. in Neurosurgery from the prestigious Christian Medical College, Vellore, Dr. Bahuleyan pursued advanced fellowship training at three of the world's most renowned medical institutions in the United States: Brigham and Women's Hospital (Harvard Medical School) for spine surgery, Case Western Reserve University for minimally invasive neurosurgery, and the Cleveland Clinic for neurosurgical oncology, functional neurosurgery, and pain management.
During his fellowships in the United States, Dr. Bahuleyan developed four groundbreaking "first-in-literature" minimally invasive endoscopic techniques for treating medically intractable epilepsy — procedures that have since been adopted by epilepsy centers worldwide and codified in international clinical guidelines, textbooks, and the Congress of Neurological Surgeons (CNS) evidence-based guidelines. His techniques have been validated by Prof. Michael Gaab, the pioneer of endoscopic neurosurgery, who authored a three-page commentary in World Neurosurgery praising Dr. Bahuleyan's innovations.
Dr. Bahuleyan has authored over 40 peer-reviewed publications in high-impact international journals including the Journal of Neurosurgery: Pediatrics, World Neurosurgery, Child's Nervous System, and the British Journal of Neurosurgery. His work has garnered more than 600 citations and has been selected as the cover illustration for three separate issues of the Journal of Neurosurgery: Pediatrics — a rare honor reserved for the most significant research. He is also a first author in the definitive textbook Benzel's Spine Surgery.
He holds ECFMG certification and has successfully completed all steps of the United States Medical Licensing Examination (USMLE), underscoring his global credentials and readiness to collaborate across international medical environments.
Senior Consultant – Neurosurgery
Caritas Neuro Sciences
Caritas Hospital, Thellakom, Kottayam, Kerala 686630, India
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Comprehensive neurosurgical expertise across brain, spine, and functional neurosurgery — trained at the world's leading institutions.
Pioneer of four first-in-literature endoscopic techniques for intractable epilepsy including hemispherotomy, amygdalohippocampectomy, corpus callosotomy, and hippocampal depth electrode placement.
Advanced brain tumor resection including intraoperative MRI-guided surgery, awake craniotomy, LITT for deep-seated tumors, and Gamma Knife radiosurgery for skull-base and metastatic lesions.
Harvard-trained spine surgeon specializing in minimally invasive cervical and lumbar decompressions, TLIF/PLIF fusions, ProDisc® artificial disc replacement, and complex spinal instrumentation.
High-volume endoscopic third ventriculostomy for hydrocephalus (300+ ETVs, 75% shunt-free rate) and pioneering keyhole approaches for brain and spine conditions.
Microvascular decompression for trigeminal neuralgia and hemifacial spasm, vestibular schwannoma surgery with facial nerve preservation, and complex skull-base tumor removal.
Deep brain stimulation (DBS), spinal cord stimulators, intrathecal pain pumps for chronic pain and cancer pain, and intrathecal baclofen pumps for spasticity management.
Four groundbreaking minimally invasive endoscopic epilepsy surgery techniques developed at Case Western Reserve University — now adopted worldwide.
A minimally invasive keyhole approach to a radical disconnection procedure for treating seizures originating from one hemisphere of the brain. Selected as the cover illustration of the journal and winner of the Best Paper Award at Case Western Reserve University.
A novel technique for precise placement of depth electrodes in the hippocampus under direct endoscopic vision, enabling safer diagnosis of deep-seated epileptic foci and reducing the risk of injury to vital brain structures.
A minimally invasive approach for removing the amygdala and hippocampus — the most common epilepsy surgery worldwide. Received a three-page invited commentary from Prof. Michael Gaab, the father of endoscopic neurosurgery.
First description of total corpus callosotomy through a keyhole approach using an endoscope, offering a less invasive option for treating severe drop-attack seizures in epilepsy patients.
Dr. Bahuleyan's research has been codified into international standards of care including the Congress of Neurological Surgeons (CNS) 2020 Pediatric Hydrocephalus Guidelines, UpToDate® clinical resource, Nature Reviews Disease Primers, and six Springer reference volumes. His techniques are taught in fellowship programs and referenced in authoritative textbooks including Benzel's Spine Surgery, The Corpus Callosum (Springer, 2023), and Advances and Technical Standards in Neurosurgery.
He serves as Associate Editor for Surgical Neurology International and is an invited peer reviewer for Neurology India, Frontiers in Surgery, and the Journal of Spinal Surgery. He also holds the role of Thesis Examiner for the Diplomate of National Board (DNB) program, evaluating the research of aspiring neurosurgeons for board certification.
Google Scholar Profile → | PubMed Listing → | Scopus Profile →
Cleveland Clinic, Cleveland, Ohio, USA
Burkhardt Brain Tumor Center, Cleveland Clinic, Cleveland, Ohio, USA
Brigham and Women's Hospital, Harvard Medical School, Boston, USA
Case Western Reserve University, Cleveland, Ohio, USA
Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala
Christian Medical College, Vellore, Tamil Nadu, India
T.D. Medical College, Alappuzha, Kerala, India
Dr. Biji Bahuleyan is one of the most experienced and internationally recognized neurosurgeons in Kerala. Currently Senior Consultant – Neurosurgery at Caritas Neuro Sciences, Caritas Hospital, Kottayam, he has fellowship training from Harvard Medical School, Cleveland Clinic, and Case Western Reserve University. He has pioneered four first-in-literature minimally invasive epilepsy surgery techniques and authored over 40 peer-reviewed publications with 600+ citations.
Dr. Biji Bahuleyan specializes in brain tumor surgery (including awake craniotomy and intraoperative MRI-guided resections), spine surgery (minimally invasive and complex fusions), epilepsy surgery (including endoscopic procedures), endoscopic third ventriculostomy for hydrocephalus, deep brain stimulation, microvascular decompression for trigeminal neuralgia, Gamma Knife radiosurgery, and spinal cord stimulators for chronic pain management.
You can book a consultation with Dr. Biji Bahuleyan at Caritas Neuro Sciences, Caritas Hospital, Thellakom, Kottayam, Kerala 686630 by calling +91 9745612132 or through WhatsApp. You can also visit the hospital directly or book through the Caritas Hospital website.
Caritas Neuro Sciences
Thellakom, Kottayam, Kerala 686630, India
Phone: +91 481 279 0025
Caritas Hospital is a leading multi-specialty hospital in Kerala renowned for advanced neurosurgical care. The Caritas Neuro Sciences department provides comprehensive services in brain surgery, spine surgery, epilepsy surgery, and neurological care under the leadership of Dr. Biji Bahuleyan.
Internationally trained neurosurgeon providing world-class brain and spine surgery at Caritas Hospital, Kottayam, Kerala.
